Lacrimosa
Lacrimosa is part of the Dies Irae sequence, Comprised of total 19 sequences. There are many compositions for this, they all have the same exact text, but different melodies. Verdi also has a famous composition on this.
From Wikipedia: The Lacrimosa (Latin for "weeping/tearful"), also a name that derives from Our Lady of Sorrows,[citation needed] a title given to The Virgin Mary, is part of the Dies Irae sequence in the Requiem Mass. Its text comes from the Latin 18th and 19th stanzas of the sequence.[1] Many composers, including Mozart, Berlioz, and Verdi have set the text as a discrete movement of the Requiem.
English Text
Full of tears will be that day
When from the ashes shall arise
The guilty man to be judged;
Therefore spare him, O God,
Merciful Lord Jesus,
Grant them eternal rest. Amen.
Latin Text
Lacrimosa dies illa
Qua resurget ex favilla
Judicandus homo reus.
Huic ergo parce, Deus:
Pie Jesu Domine,
Dona eis requiem. Amen.